Feeder and cutter for threshing-machines.



.No. 874,813 PATENTED DEC. 24, 190?.

. E. s. WHITE, 111-85 0. A. FRY.

FEEDER AND CUTTER 'EoE T-HR'ESHING MACHINES.

' APPLIOATIOH FILED APB.24,190'1.

4 SHEETS-SHEET l;

7 m r. M w MN Mm Mm .E. m m o o 000M000. o o a N O O R- .W MM Q E no w o w .fiw N% m V .m w SQ .No. 874,813. PATENTED DECJZ I, 1907.

R. S. WHITE, JR. & G. A. FRY. FEEDER AND CUTTER FOR THRESHING MACHINES.-

APELIOATION, FILED APR.24, 1907.

4 SHEETS-SHEET Z.

PATENTED DEC. 24, 1907. R. S. WHITE, JR. & G. A. FRY. FEEDER AND GUTTERFOR THRESHING MACHINES.

APPLIOATIOH FILED APB-.24, 1907.

SHBETS-EHEET 3.

lumnae:

. PATENTED DEC. 24, 1907. R. S. WHITE, JR. & G. A. FRY. FEEDER AND CUTTER FOR THRBSHING MACHINES.

4 SHEETS- -APPLIOATION FILED APB-14,1907.

arrangement and combination of UNITED STATES PATENT OFFICE.

ROBERT S. WHITE, JR, OF OS GEOL A, AND QHARLES A. FRY, OF GRAND, OKLAHOMA.

FEEDER AND CUTTER FOB THRESHING-MASJIHNES.

homa, have invented new and useful Imrovements in Feeders and Cutters for hreshing-Machines, of which the following is a s eciiication.

his invention relates to feeders and band cutters for. threshing machines; and it has.

for its objects to simplify and improve the construction and operation of this class of devices.

Further and special objects of the invention are to provide simple and improved means for drivin the band cutting mechanism and for regu ating the feed whereby the speed of the, feed mechanism will be relaxed or stopped entirely in case of necessity, when the throat of the machine becomes choked. With these and other ends in view which will readily appear as the nature of the invention is betterunderstood, the same consists in the improved constructionand novel arts which will be hereinafter fully describe. and particularlypointed out in the claims.

' In the accompanying drawings has been illustrated a simple and preferred form of the invention; it being, however, understood that no limitation is necessarily made to the recise structural details therein exhibited, but that changes, alterations and modifications within the scope of the invention may be resorted to when desired. I

In the drawings, Figure 1 is a side elevation showing the improved feeding and band cutting mechanism applied to the front .end of the threshing machine. view illustrating the o posite side. Fig. 3 is. a longitudinal verticafsectional view. Fig.

4 is a vertical. transverse sectional view taken on the plane indicated by the line 4-4 in Fig. 3. Fig. 5 is a sectional detail view of the governor. Fig. 5 is a sectional elevation of the governor. Fig. 6 is a-sectional view taken through one end of the band cutter shaft and showing the emergency governor. Fig. 7 is a sectional view taken on the plane indicated by the line 7 7 in Fig. 6. Fig. 8 is a detail view showing the lower end of the lever actuating the emergency governor. Fig. 9 is a sectional detail view Specification of Letters Patent. 7 Application filed April 24. 1907. Serial No. 370.058.

Fig. 2 is a side.

Patented Dec. 24, 19.07.

' showing the upper end of the lever actuating the emergency governor and the means whereby said lever is held in engagement with the actuating cam. Fig. 10 is a detail view in elevation of the actuating cam.

' Corresponding arts in the several figures are denoted by li e characters of reference.

1 desi nates the forward end of the casing of an ordinary threshing machine wherein is journaled the shaft 2 carrying the threshing cylinder 3. The mouth of the casing 1 is expanded to form a chamber 4 in which parts of the band cutting and feeding mechanism are located.

The shaft 5 which carries the band cuttin knives 6 is sup orted in advance of and above the cylin er shaft 2, and said band cutter shaft carries a band wheel 7 which is driven direct from a pulley 8 upon the cylinder shaft by a belt 9;- constant motion at high speed will thus be imparted to theband cutter shaft. when the machine is in motion.

The band cutter shaft carries adjacent to the band wheel 7 a wheel or disk 10 having a friction rim or flange 11 and provided with a hub 12 upon which three sprocket wheels 13, 14 and 15 are formed or secured. The friction wheel 10 is loose upon the band cutter shaft and it-is adapted to be driven by means of friction shoes 16 pivoted upon the spokes of the band wheel 7 and normally held out of engagement with the friction rim 11 by means of springs 17 coiled u on rods 18 which are loosely connected wit the friction shoes by means of a ertured lu s or cars 19 extending from the atter; sai rods being extended through apertured lugs 20 upon the band wheel, and the springs 17 being disposed between the lugs 20 and nuts 21 which are threaded upon the outer ends of the rods 18, so that the tension of the springs may be ing understood that as soon as the s eed falls below threshing speed the motion 0 the wheel 10 will be suspended.

22 is a shaft supported for rotation below and parallel to the band cutter shaft, and

carrying at one end the emergency governor carrying a lever 31, the outer end of'which is adapted to engage shoulders 32 and 33 formed upon the inner faces of the sprocket wheels 24 and 25, respectively, said sprocket wheels being, however, sufficiently spaced so that the outer end of the lever 31 may occupy an intermediate pcsition out of engagement with either of the sprocket wheels, as will be seen in Fig. 6 of the drawings. Fitted in the outer endof the sleeve 23 is a slidable shaft section 34 having at its inner end a slot 35 in which the inner end of the lever 31 is accommodated; it will be readily seen that bysliding the shaft section 34 longitudinally of the band cutter shaft 22, the lever 31 may be rocked so as to place its outer end in engagement with the shoulder 32 or 33 upon the sprocket wheel 24 or 25, or said lever may be adjusted at an intermediate position; the slidable shaft section 34 is automatically operated by means which will be presently more fully described.

436 is a transverse shaft supported for rotation above and parallel to the band cutter shaft and having a crank or cranks support ing the upper ends of the curved serrated feeder bars 37 which extend downwardly and rearwardly below the band cutter shaft,

intermediate and alternating with the band cutting knives, said feeder bars being vibrated when the crank shaft 36 is in motion so as to push or feed the grain in the direction of the cylinder; the lower rear ends of the feeder bars 37 are provided with boxes 38 accommodating a transverse shaft 39 which is connected by means of links 40 with cranks 41 extending from a rock shaft 42; in this manner, the rear ends of the feeder bars will be supported without interference with their vibratory movement. The shaft 42 carries at one end a segment 43 having a cam edge 44, the working face of which is adapted to be engaged by a roller or anti-friction member 45 upon one end of a lever 46 which is fulcrumed exteriorly upon the casing 1 at 47, which latter represents a lug disposed intermediate the shafts 42 and 22; the opposite end of the lever is bifurcated as shown at 48, and engages an annularly grooved collar 49 upon the shaft section 34 which is slidably mounted in the sleeve 23 as hereinbefore described. The end of the lever 46 which carries the roller 45 extends through a slot 50 in a housing 51 which'is secured exteriorly upon the casing and which contains a spring 52, held inposition by a screw cap 53, and pressing against the lever 46 in such a manner as to hold the anti-friction roller 45 in engagement with the cam edge 44 of the segment 43. Thus, by the oscillation of the rock shaft '42, the lever 46 will be actuated to effect adjustment of the slidable shaft section 34 whereby the lever 31 is rocked to place its outer extremity in engagement with one of the sprocket wheels 24 and 25, or in any convenient non-engaging position, as the case may be. The relative arrangement of the parts is such that when the free ends of the feeder bars 37 are at the lowermost limit of their movements, the rock shaft 42, the segment 43 and intermediate. connecting parts will be in such a position that the lever 31 will be in engagement with the smaller sprocket wheel 24, which will thus drive the shaft 22 at relatively high speed; the sprocket wheel 25 rotating idly upon the sleeve 23. When the free ends of the feeder bars are raised to'a certain extent, the shaft 42 will be rocked, and the shaft section 34 will be moved by the intermediate connections until the engaging end of the lever 31 en ages the sprocket wheel 25 whereby the sha t 22 will be driven at reduced speed, the sprocket wheel 24 rotating idly upon the sleeve 23. When the free ends of the feeder bars 37 are raised to their extreme limit, the result will be that the lever 31 will be rocked to a nonengaging position intermediate the sprocket wheels 24 and 25, both of which will then ro- I The shaft 36 carrying the vibratory feeder bars is provided with a sprocket wheel 44 which is connected by a chain 45 with the sprocket wheel 14 upon the hub of the friction wheel 10 of the governor whereby said shaft will be driven.

Adjacent to the shaft 22, in rear and in front of and parallel to the latter are two shafts 46 and 47 carrying spur wheels 48 and 49 that mesh with a pinion 50 upon the shaft 22; the shafts 46 and 47, which are thus'driven, carry the beaters or agitators 51. whereby the material which is fed to the machine is shaken, agitated and loosened, so as to be fed in the best possible condition. The grain pan 52, which is disposed below the shafts 22, 46" and 47, inclines downwardly towards the threshing cylinder, the rear end of said grain p'an being supported upon the lip 53 of the concave 54; the forward end of the grain pan is provided with boxes 55 j ournaled upon cranks 56 of a rock shaft 57 which has an additional crank arm 58 that is connected by a link 59 with a crank 60 upon the shaft 36, so that the operation of said shaft will impart a vibratory and. recip- Bum ' rocatory movement to'the grain panwhich is, effected in discharging the loose grain into the concave of the machine. p

The feeder includes an endless carrier 61 extendin through thefeed trough'62 and supp orte at its upper end upon a shaft 63 havin a sprocket wheel 64 which is driven by a c ain 65 from a-sprocket wheel 66upon the shaft 46. I

. carrier 61 which, when the 'machine is n motion, at threshing speed, is driven from the cylinder through the medium of the governor upon the band cutter shaft and the emergency governor u on the shaft 22, it being assumed that t e free ends of the feeder bars 37 are, at the time of starting the machine, at the lower limit of their movements, sothat the smaller sprocket wheel 24 of the emergency governor will be driven. If the machine is fed too heavily, the free ends of the feeder bars 37 will be raised thus rocking the shaft 42 and operating the emerency governor to reduce the speed of the eeder if the machine should become choked owing to overfeed, through the presence'of wet grain, or any other reason, the free ends of the feeder bars 37 will be raised to their utmost limit, and the endless carrier 61 will cease to operate. This, however, will not interfere with the operation of the feeder bars 37 and the band cuttershaft 5 which continue to operate until the throat of the machine becomes partially cleared, when the free ends of the feeder bars will descend and motion at the proper speed will again be transmitted to the endless carrier 61 so that grain will again be fed to the machine.

This improved band cutting and feeding mechanism, as will be seen, is simple in construction and automatic in operation reuiring no attention beyond the placing of the bundles upon the endless carrier, whereby they are conveyed to the throat of the machine.

Having thus fully described the invention, what we claim as new is -1. In a feeder and band cutter, for thresh ing machines, a shaft supported for rotation, band cutting knives upon said shaft, a countershaft having cranks, serrated feeder bars pivoted upon the cranks, a rock shaft having crank arms, links connecting said arms with the free ends of the feeder bars, a segment upon the rock shaft having a cam edge, a rock lever having an anti-friction member engaging the cam edge of the segmer t, a countershaft driven from the band cutter shaft, an emergency governor including sprocket wheels of difierent diameters mounted loosely thereon and driven from the band cutter shaft and means actuated by the rockin lever whereby said sprocket wheels may e operatively connected with the countershaft.

i 2. In a band cutter and feeder for threshing machines, a cutter carrying shaft having a governor including a plurality of sprocket wheels, a countershaft, an emer ency-governor on said countershaft inc uding two sprocket wheels of different diameters loose upon said shaft and driven direct from the overnor upon the cutter carrying shaft, a ever operatively connected with the countershaft, shoulders upon the inner faces of the sprocket wheels adapted to be bngaged by said lever, vibratory feeder bars having vertically movable free ends, and connecting means between'the feeder bars and the lever connected with the countershaft whereby said lever will be rocked to. engagement with either of the sprocket wheels or to an intermediate non-en aging position as the free ends of the fee er bars rise or fall to different positions.

3. In a band cutter and feeder for threshing machines including a countershaft having cranks, serrated feeder bars pivoted upon the cranks, a rock shaft having crank arms, and links connecting said arms with the free ends of the feeder bars, an emergency governor including a countershaft, a sleeve upon'said shaft, sprocket wheels of different diameters journaled loosely upon the sleeve, bearing lugs extending from the sleeve adjacent to a slot in the latter, a lever pivoted upon said lugs, shoulders upon the inner. faces of the sprocket wheels adapted to be engaged by the outer end of the lever, a shaft section mounted slidably in the sleeve and having a slot engaging the inner end of the lever, and means actuated by the rock shaft havin crank arms, link-connected with the feeder ars whereby the shaft sec-' slidable in the sleeve and having a slot en gaging the inner end of the lever, a crank shaft supporting a plurality of feed bars, a

rock shaft having cranks, links connecting the latter with the free ends of the feeder bars, a segment upon the rock shaft having a cam edge, a lever having a bifurcated en engaging an annular groove upon the sliding In testimony whereof, we affix our signashaft sect1on of the emergency governor, an tures 1n presence of two wltnesses.

anti-friction member upon the 0p osite end ROBERT WHITE, JR. of said lever engaging the cam e e ()f the CHARLES A. FRY.

5 se ment, and a spnng engaging sai lever to Witnesses:

ho d the anti-friction member in engagement Jos. L. SMITH,

with the cam edge of the segment. 0. E. NULL. 

